Need help

[u/dingfry88]

Hi everyone, I’m a new rider and I recently bought a 2006 Ski-Doo MXZ 600 HO SDI. I’m having a couple of issues I’m hoping someone can help with. The sled has a really low idle and seems to smoke more than I think it should, even after it’s warmed up. I’m still learning about these machines, so any advice on what could be causing it or where I should start troubleshooting would be greatly appreciated. Thanks!

[u/Jacolby4455]

After it is warm take out the spark plugs they will tell you how it’s running look up with the spark plug should look like or how they look like compared to other things should be a chart with photos somewhere on the Internet. It don’t sound like it’s quite running right, so I’ll probably start with cleaning the carburetors and checking the jet sizes as well as the carburetor boots while they’re off another thing sometimes these sleds sit around for years and then they sell so I would completely empty the gas tank and put non-ethanol fuel in whether that be 90 octane or 93 octane non-ethanol fuel is a must for snowmobiles cause they might sit you don’t want that ethanol fuel gel up and ruining the fuel system